First ultrasound not sure what to do

danielle • Married to my high school sweetheart. 17 years together. Welcomed a beautiful baby boy in 2021. 💙 boy/ girl 🎀🦖twins born Dec 2023

I’m going in for my first ultrasound they didn’t tell me anything. I’ll be 6 weeks 6 days! Anything I need to know or prepare for?